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Effect of alteration in hip joint alignment following total hip arthroplasty on hip joint contact force during gait Cover

Effect of alteration in hip joint alignment following total hip arthroplasty on hip joint contact force during gait

Open Access
|May 2024

Abstract

Purpose: Investigation of the relationship between changes in hip-joint center and hip loading pre- and post-total hip arthroplasty (THA) is important in evaluating the effect of surgery on motor function. However, few longitudinal studies comparing pre- and post-THA have been reported. The purpose of this study was to determine the effect of changes in hip-joint center pre- and post-THA on the magnitude and direction of hip-joint contact force during the gait cycle, using a patient-specific musculoskeletal model.

Methods: The simulation program AnyBody was used to create musculoskeletal models incorporating patient specific hip-joint shape and hip-joint center position for 17 patients. The relationship between the displacement distance of the hip-joint center and the amount of change in hip-joint contact force was examined by correlation analysis.

Results: A decrease in the medial force ( p ≤ 0.049) and an increase in the anterior force ( p ≤ 0.001) acting on the hip joint were observed during gait post-THA compared to pre-THA. Mediolateral displacement of the hip-joint center post-THA compared to pre-THA was significantly positively correlated with the difference in anterior hip-joint contact force, and negatively to hip-joint medial contact force.

Conclusions: Longitudinal observations revealed the effects of change in hip-joint center position induced by THA on the hip-joint contact force during gait. Therefore, the change of hip-joint center position during THA can be an important factor for estimating the improvement of motor function following THA.

DOI: https://doi.org/10.37190/abb-02284-2023-02 | Journal eISSN: 2450-6303 | Journal ISSN: 1509-409X
Language: English
Page range: 15 - 24
Submitted on: Jul 16, 2023
Accepted on: Oct 13, 2023
Published on: May 18, 2024
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2024 Kazutaka Hata, Yasuhiro Ishido, Kiyohiro Fukudome, Ryoji Kiyama, Masayuki Kawada, Tomohiro Nishi, Shintaro Nakatsuji, Kazunori Yone, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.